ep8260.h

AT91RM9200的完整启动代码：包括loader, boot及U-boot三部分均已编译通过！欢迎下载使用！

/*
 * (C) Copyright 2002
 * Frank Panno <[e-mail]>, Delphin Technology AG
 *
 * This file is based on similar values for other boards found in other
 * U-Boot config files, and some that I found in the EP8260 manual.
 *
 * See file CREDITS for list of people who contributed to this
 * project.
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License as
 * published by the Free Software Foundation; either version 2 of
 * the License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
 * MA 02111-1307 USA
 */

/*
 * board/config.h - configuration options, board specific
 *
 * Note: my board is a "SBC 8260 H, V.1.1"
 * 	- 64M 60x Bus SDRAM
 * 	- 32M Local Bus SDRAM
 * 	- 16M Flash (4 x AM29DL323DB90WDI)
 * 	- 128k NVRAM with RTC
 */

#ifndef __CONFIG_H
#define __CONFIG_H

/* What is the oscillator's (UX2) frequency in Hz? */
#define CONFIG_8260_CLKIN  (66 * 1000 * 1000)

/*-----------------------------------------------------------------------
 * MODCK_H & MODCLK[1-3] - Ref: Section 9.2 in MPC8206 User Manual
 *-----------------------------------------------------------------------
 * What should MODCK_H be? It is dependent on the oscillator
 * frequency, MODCK[1-3], and desired CPM and core frequencies.
 * Here are some example values (all frequencies are in MHz):
 *
 * MODCK_H   MODCK[1-3]	 Osc	CPM    Core
 * -------   ----------	 ---	---    ----
 * 0x2	     0x2	 33	133    133
 * 0x2	     0x3	 33	133    166
 * 0x2	     0x4	 33	133    200
 * 0x2	     0x5	 33	133    233
 * 0x2	     0x6	 33	133    266
 *
 * 0x5	     0x5	 66	133    133
 * 0x5	     0x6	 66	133    166
 * 0x5	     0x7	 66	133    200 *
 * 0x6	     0x0	 66	133    233
 * 0x6	     0x1	 66	133    266
 * 0x6	     0x2	 66	133    300
 */
#define CFG_SBC_MODCK_H 0x05

/* Define this if you want to boot from 0x00000100. If you don't define
 * this, you will need to program the bootloader to 0xfff00000, and
 * get the hardware reset config words at 0xfe000000. The simplest
 * way to do that is to program the bootloader at both addresses.
 * It is suggested that you just let U-Boot live at 0x00000000.
 */
/* #define CFG_SBC_BOOT_LOW 1 */	/* only for HRCW */
/* #undef CFG_SBC_BOOT_LOW */

/* The reset command will not work as expected if the reset address does
 * not point to the correct address.
 */

#define CFG_RESET_ADDRESS	0xFFF00100

/* What should the base address of the main FLASH be and how big is
 * it (in MBytes)? This must contain TEXT_BASE from board/ep8260/config.mk
 * The main FLASH is whichever is connected to *CS0. U-Boot expects
 * this to be the SIMM.
 */
#define CFG_FLASH0_BASE 0xFF000000
#define CFG_FLASH0_SIZE 16

/* What should the base address of the secondary FLASH be and how big
 * is it (in Mbytes)? The secondary FLASH is whichever is connected
 * to *CS6. U-Boot expects this to be the on board FLASH. If you don't
 * want it enabled, don't define these constants.
 */
#define CFG_FLASH1_BASE 0
#define CFG_FLASH1_SIZE 0
#undef CFG_FLASH1_BASE
#undef CFG_FLASH1_SIZE

/* What should be the base address of SDRAM DIMM (60x bus) and how big is
 * it (in Mbytes)?
*/
#define CFG_SDRAM0_BASE 0x00000000
#define CFG_SDRAM0_SIZE 64

/* define CFG_LSDRAM if you want to enable the 32M SDRAM on the
 * local bus (8260 local bus is NOT cacheable!)
*/
/* #define CFG_LSDRAM */
#undef CFG_LSDRAM

#ifdef CFG_LSDRAM
/* What should be the base address of SDRAM DIMM (local bus) and how big is
 * it (in Mbytes)?
*/
  #define CFG_SDRAM1_BASE 0x04000000
  #define CFG_SDRAM1_SIZE 32
#else
  #define CFG_SDRAM1_BASE 0
  #define CFG_SDRAM1_SIZE 0
  #undef CFG_SDRAM1_BASE
  #undef CFG_SDRAM1_SIZE
#endif /* CFG_LSDRAM */

/* What should be the base address of NVRAM and how big is
 * it (in Bytes)
 */
#define CFG_NVRAM_BASE_ADDR  0xFa080000
#define CFG_NVRAM_SIZE       (128*1024)-16

/* The RTC is a Dallas DS1556
 */
#define CONFIG_RTC_DS1556

/* What should be the base address of the LEDs and switch S0?
 * If you don't want them enabled, don't define this.
 */
#define CFG_LED_BASE 0x00000000
#undef CFG_LED_BASE

/*
 * select serial console configuration
 *
 * if either CONFIG_CONS_ON_SMC or CONFIG_CONS_ON_SCC is selected, then
 * CONFIG_CONS_INDEX must be set to the channel number (1-2 for SMC, 1-4
 * for SCC).
 *
 * if CONFIG_CONS_NONE is defined, then the serial console routines must
 * defined elsewhere.
 */
#define CONFIG_CONS_ON_SMC          /* define if console on SMC */
#undef  CONFIG_CONS_ON_SCC          /* define if console on SCC */
#undef  CONFIG_CONS_NONE            /* define if console on neither */
#define CONFIG_CONS_INDEX    1      /* which SMC/SCC channel for console */

/*
 * select ethernet configuration
 *
 * if either CONFIG_ETHER_ON_SCC or CONFIG_ETHER_ON_FCC is selected, then
 * CONFIG_ETHER_INDEX must be set to the channel number (1-4 for SCC, 1-3
 * for FCC)
 *
 * if CONFIG_ETHER_NONE is defined, then either the ethernet routines must be
 * defined elsewhere (as for the console), or CFG_CMD_NET must be removed
 * from CONFIG_COMMANDS to remove support for networking.
 */
#undef  CONFIG_ETHER_ON_SCC           /* define if ethernet on SCC    */
#define CONFIG_ETHER_ON_FCC           /* define if ethernet on FCC    */
#undef  CONFIG_ETHER_NONE             /* define if ethernet on neither */
#define CONFIG_ETHER_INDEX      3     /* which SCC/FCC channel for ethernet */

#if ( CONFIG_ETHER_INDEX == 3 )

/*
 * - Rx-CLK is CLK15
 * - Tx-CLK is CLK16
 * - RAM for BD/Buffers is on the local Bus (see 28-13)
 * - Enable Half Duplex in FSMR
 */
# define CFG_CMXFCR_MASK	(CMXFCR_FC3|CMXFCR_RF3CS_MSK|CMXFCR_TF3CS_MSK)
# define CFG_CMXFCR_VALUE	(CMXFCR_RF3CS_CLK15|CMXFCR_TF3CS_CLK16)

/*
 * - RAM for BD/Buffers is on the local Bus (see 28-13)
 */
#ifdef CFG_LSDRAM
  #define CFG_CPMFCR_RAMTYPE	3
#else /* CFG_LSDRAM */
  #define CFG_CPMFCR_RAMTYPE	0
#endif /* CFG_LSDRAM */

/* - Enable Half Duplex in FSMR */
/* # define CFG_FCC_PSMR		(FCC_PSMR_FDE|FCC_PSMR_LPB) */
# define CFG_FCC_PSMR		0

#else /* CONFIG_ETHER_INDEX */
# error "on EP8260 ethernet must be FCC3"
#endif /* CONFIG_ETHER_INDEX */

/*
 * select i2c support configuration
 *
 * Supported configurations are {none, software, hardware} drivers.
 * If the software driver is chosen, there are some additional
 * configuration items that the driver uses to drive the port pins.
 */
#undef  CONFIG_HARD_I2C			/* I2C with hardware support	*/
#define CONFIG_SOFT_I2C		1	/* I2C bit-banged		*/
#define CFG_I2C_SPEED		400000	/* I2C speed and slave address	*/
#define CFG_I2C_SLAVE		0x7F

/*
 * Software (bit-bang) I2C driver configuration
 */
#ifdef CONFIG_SOFT_I2C
#define I2C_PORT	3		/* Port A=0, B=1, C=2, D=3 */
#define I2C_ACTIVE	(iop->pdir |=  0x00010000)
#define I2C_TRISTATE	(iop->pdir &= ~0x00010000)
#define I2C_READ	((iop->pdat & 0x00010000) != 0)
#define I2C_SDA(bit)	if(bit) iop->pdat |=  0x00010000; \
			else    iop->pdat &= ~0x00010000
#define I2C_SCL(bit)	if(bit) iop->pdat |=  0x00020000; \
			else    iop->pdat &= ~0x00020000
#define I2C_DELAY	udelay(5)	/* 1/4 I2C clock duration */
#endif /* CONFIG_SOFT_I2C */

/* #define CONFIG_RTC_DS174x */

/* Define this to reserve an entire FLASH sector (256 KB) for
 * environment variables. Otherwise, the environment will be
 * put in the same sector as U-Boot, and changing variables
 * will erase U-Boot temporarily
 */
#define CFG_ENV_IN_OWN_SECT

/* Define to allow the user to overwrite serial and ethaddr */
#define CONFIG_ENV_OVERWRITE

/* What should the console's baud rate be? */
/* #define CONFIG_BAUDRATE         57600 */
#define CONFIG_BAUDRATE         115200

/* Ethernet MAC address */
#define CONFIG_ETHADDR          00:10:EC:00:30:8C

#define CONFIG_IPADDR		192.168.254.130
#define CONFIG_SERVERIP         192.168.254.49

/* Set to a positive value to delay for running BOOTCOMMAND */
#define CONFIG_BOOTDELAY        -1

/* undef this to save memory */
#define CFG_LONGHELP

/* Monitor Command Prompt       */
#define CFG_PROMPT              "=> "

/* Define this variable to enable the "hush" shell (from
   Busybox) as command line interpreter, thus enabling
   powerful command line syntax like
   if...then...else...fi conditionals or `&&' and '||'
   constructs ("shell scripts").
   If undefined, you get the old, much simpler behaviour
   with a somewhat smapper memory footprint.
*/
#define CFG_HUSH_PARSER
#define CFG_PROMPT_HUSH_PS2	"> "

/* What U-Boot subsytems do you want enabled? */
/*
*/
#define CONFIG_COMMANDS		(	CFG_CMD_ALL     & \
					~CFG_CMD_BMP	& \
					~CFG_CMD_BSP    & \
					~CFG_CMD_DCR    & \
					~CFG_CMD_DHCP   & \
					~CFG_CMD_DOC    & \
					~CFG_CMD_EEPROM & \
					~CFG_CMD_FDC    & \
					~CFG_CMD_FDOS	& \
					~CFG_CMD_HWFLOW	& \
					~CFG_CMD_IDE    & \
					~CFG_CMD_JFFS2	& \
					~CFG_CMD_KGDB   & \
					~CFG_CMD_MII    & \
					~CFG_CMD_MMC	& \
					~CFG_CMD_NAND	& \
					~CFG_CMD_PCI    & \
					~CFG_CMD_PCMCIA & \
					~CFG_CMD_SCSI   & \
					~CFG_CMD_SPI	& \
					~CFG_CMD_USB	& \
					~CFG_CMD_VFD	& \
					~CFG_CMD_DTT )

/* Where do the internal registers live? */
#define CFG_IMMR               0xF0000000
#define CFG_DEFAULT_IMMR       0x00010000

/* Where do the on board registers (CS4) live? */
#define CFG_REGS_BASE          0xFA000000

/*****************************************************************************
 *
 * You should not have to modify any of the following settings
 *
 *****************************************************************************/

#define CONFIG_MPC8260          1       /* This is an MPC8260 CPU   */
#define CONFIG_EP8260           11      /* on an Embedded Planet EP8260 Board, Rev. 11 */

#define CONFIG_BOARD_PRE_INIT	1	    /* Call board_pre_init	*/

/* this must be included AFTER the definition of CONFIG_COMMANDS (if any) */
#include <cmd_confdefs.h>

/*
 * Miscellaneous configurable options
 */
#if (CONFIG_COMMANDS & CFG_CMD_KGDB)
#  define CFG_CBSIZE              1024       /* Console I/O Buffer Size      */
#else
#  define CFG_CBSIZE              256        /* Console I/O Buffer Size      */
#endif

/* Print Buffer Size */
#define CFG_PBSIZE        (CFG_CBSIZE + sizeof(CFG_PROMPT)+16)

#define CFG_MAXARGS       8            /* max number of command args   */

#define CFG_BARGSIZE      CFG_CBSIZE   /* Boot Argument Buffer Size    */

#ifdef CFG_LSDRAM
  #define CFG_MEMTEST_START 0x04000000   /* memtest works on  */
  #define CFG_MEMTEST_END   0x06000000   /* 64-96 MB in SDRAM */
#else
  #define CFG_MEMTEST_START 0x00000000   /* memtest works on  */
  #define CFG_MEMTEST_END   0x02000000   /* 0-32 MB in SDRAM */
#endif /* CFG_LSDRAM */

#define	CONFIG_CLOCKS_IN_MHZ	1      /* clocks passsed to Linux in MHz */

#define CFG_LOAD_ADDR     0x00100000   /* default load address */
#define CFG_TFTP_LOADADDR 0x00100000   /* default load address for network file downloads */

#define CFG_HZ            1000         /* decrementer freq: 1 ms ticks */

/* valid baudrates */